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90mm |  |
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65mm |  |
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55mm |  |
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45mm |  |
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18mm |  |
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14mm |  |
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12mm |  |
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11mm |  |
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7mm |  |
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4mm |  |
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3mm |  |
| In fact, the sutures become simpler and more primitive. |
To use this page, click on the small picture and a large picture will pop up. If you move the cursor off the large picture, it will disappear. Sutures change shape as you move from the outer (most recent) to the inner (oldest) shell. |
